Maintenance Schedule - Husqvarna 445 Operator's Manual

MAINTENANCE
Maintenance schedule
The follewing is a list of the maintenance that must be performed on the machine. Most ef the items are described in the
Maintenance section.
Daily maintenance Weekly maintenance Monthly maintenance
Check the brake band on the chain
On chain saws without a catalytic brake for wear. Replace when less
Clean the outside of the machine, converter, check the cooling system than 0.6 mm (0,024 inch) remains at
weekly, the most worn point.
Check that the components of the
throttle control work safely. (Throttle Check the starter, starter cord and Check the clutch centre, clutch drum
lockout and throttle control.) return spring, and clutch spring for wear.
Clean the chain brake and check that
it operates safely. Make sure that the Check that the vibration damping Clean the spark plug. Check that the
chain catcher is undamaged, and elements are not damaged, electrode gap is 0.5 mm (0,020 inch).
replace it if necessary.
The bar should be turned regularly for
more even wear. Check the
lubrication hole in the bar, to be sure it
Lubricate the clutch drum bearing. Clean the outside of the carburetor.
is not clogged. Clean the bar groove.
If the bar has a sprocket tip, this
should be lubricated.
Check that the bar and chain are File off any burrs from the edges of Check fuel hose for cracks or other
getting sufficient oil. the bar. damage. Change if necessary.
Check the saw chain with regard to
visible cracks in the rivets and links,
whether the saw chain is stiff or Clean or replace the spark arrestor Empty the fuel tank and clean the
whether the rivets and links are screen on the muffler, inside.
abnormally worn. Replace if
necessary.
Sharpen the chain and check its
tension and condition. Check the drive Clean the carburetor compartment. Empty the oil tank and clean the
sprocket for excessive wear and inside.
replace if necessary.
Clean the starter units air intake. Clean the air filter. Replace if Check all cables and connections.
necessary.
Check that nuts and screws are tight.
Check that the stop switch works
correctly.
Check that there are no fuel leaks
from the engine, tank or fuel lines.
On chain saws with a catalytic
converter, check the cooling system
daily.
30 - English 1154939-49 Rev.1 2012-05-05